IEEE Antennas and Wireless Propagation Letters最新文献_第9页

Degrees of Freedom From the Six-Polarized MIMO Antenna in 1-D, 2-D, and 3-D Scattering Channels 六极化MIMO天线在一维、二维和三维散射通道中的自由度

IF 4.8 2区计算机科学

IEEE Antennas and Wireless Propagation Letters Pub Date : 2025-06-09 DOI: 10.1109/LAWP.2025.3577750

Dazhi Piao;Xingning Jia;Jiyin Wan;Li Li

{"title":"Degrees of Freedom From the Six-Polarized MIMO Antenna in 1-D, 2-D, and 3-D Scattering Channels","authors":"Dazhi Piao;Xingning Jia;Jiyin Wan;Li Li","doi":"10.1109/LAWP.2025.3577750","DOIUrl":"https://doi.org/10.1109/LAWP.2025.3577750","url":null,"abstract":"Six-polarized (SP) multiple-input–multiple-output (MIMO) channel modeling method in the two-mirror, waveguide and reverberation cavity scenarios are presented based on the theory of image source, through which accurate electromagnetic fields in both the near and far fields can be obtained conveniently. The validity of this channel modeling has been verified by full-wave numerical simulations. Over those channels, channel degrees of freedom (DoF) of the SP MIMO system are investigated with multipath scattering increased gradually from 1-D to 2-D and 3-D space. Results show that, in free space, DoF larger than 3 can only be obtained in the near field, and in the far field it is almost a constant value of 2.5, however, in scattering environment, DoF is greatly increased. Specifically, over a cross section with area of 16 m2, separated from the transmitter antenna by 10 wavelengths, in 1-D scattering channel, the maximum DoF can reach 5.50, and its mean value is 4.25. In 2-D and 3-D scattering channels, the maximum DoF is 5.67 and 5.76, and the mean value is 4.70 and 4.93, respectively.","PeriodicalId":51059,"journal":{"name":"IEEE Antennas and Wireless Propagation Letters","volume":"24 9","pages":"2949-2953"},"PeriodicalIF":4.8,"publicationDate":"2025-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144998323","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Design and Analysis of mm-Wave MIMO Antenna With a UWB AMC 基于超宽带AMC的毫米波MIMO天线设计与分析

IF 4.8 2区计算机科学

IEEE Antennas and Wireless Propagation Letters Pub Date : 2025-06-06 DOI: 10.1109/LAWP.2025.3577607

Rohit Khandekar;Deepika Sipal

{"title":"Design and Analysis of mm-Wave MIMO Antenna With a UWB AMC","authors":"Rohit Khandekar;Deepika Sipal","doi":"10.1109/LAWP.2025.3577607","DOIUrl":"https://doi.org/10.1109/LAWP.2025.3577607","url":null,"abstract":"This letter presents the design and analysis of an ultrawideband (UWB) artificial magnetic conductor (AMC) aimed to enhance the gain of a UWB millimeter-wave (mm-wave) multiple-input–multiple-output (MIMO) antenna. The AMC features capacitive slots to excite TM20 mode to achieve a phase bandwidth of 14.08 GHz, ranging from 23.49 GHz to 37.57 GHz. A 10 × 10 AMC array is positioned 0.38<italic>λ0 (<italic>λ0 is free-space wavelength at 23.27) beneath the MIMO antenna for the gain enhancement. The proposed antenna resonates from 23.27 GHz to 39.3 GHz with an impedance bandwidth of 16.03 GHz. The isolation between quad ports is greater than 19.84 dB. The enhanced gain of the proposed MIMO antenna ranges from 8.7 dBi to 12.21 dBi, with maximum gain reaching 12.21 dBi at 31.5 GHz. The proposed antenna shows diverse performance in terms of envelope correlation coefficient < 0.005, channel capacity loss < 0.26 b/s/Hz, and total active reflection coefficient < −10 dB. The size of the proposed antenna is 3.8<italic>λ0 × 3.8<italic>λ0 × 0.38<italic>λ0 only. This makes the proposed antenna suitable for a 5G bastion antenna.","PeriodicalId":51059,"journal":{"name":"IEEE Antennas and Wireless Propagation Letters","volume":"24 9","pages":"2944-2948"},"PeriodicalIF":4.8,"publicationDate":"2025-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144998141","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Ultrathin Independently Controllable Multiband Reflective Polarization Rotator 超薄自主可控多波段反射偏振旋转器

IF 4.8 2区计算机科学

IEEE Antennas and Wireless Propagation Letters Pub Date : 2025-06-06 DOI: 10.1109/LAWP.2025.3577558

Abdulrahman Mohammed Alnour Ahmed;Ahmed Abdelmottaleb Omar

{"title":"Ultrathin Independently Controllable Multiband Reflective Polarization Rotator","authors":"Abdulrahman Mohammed Alnour Ahmed;Ahmed Abdelmottaleb Omar","doi":"10.1109/LAWP.2025.3577558","DOIUrl":"https://doi.org/10.1109/LAWP.2025.3577558","url":null,"abstract":"Inspired by frequency-selective surface (FSS) design, this letter presents a novel and simple design methodology for multiband reflective polarization rotators (RPRs), enabling independently controllable operating bands, and a compact unit cell. The main concept involves manipulating the current distribution of a loop resonator to convert linearly polarized incident waves into cross-polarized waves upon reflection. The RPR consists of three metal layers separated by two dielectric substrates, featuring a square loop on the top layer and a folded strip line in the middle layer connected by vias. Multiband operation can be achieved by adding extra loops to the top layer, with each loop controlling its own frequency band. As a proof of concept, a dual-band RPR was designed using two square loops on the top layer operating in the [2.02 to 2.26] GHz and [4.12 to 4.48] GHz ranges. The design was extended to a tri-band by adding a third loop, operating at [1.54 to 1.7] GHz, [3.35 to 3.7] GHz, and [5.1 to 5.45] GHz. Thorough discussions of current distribution analysis, and experimental demonstrations are provided. The simulated results are validated through prototype measurements, showing good agreement with experimental data.","PeriodicalId":51059,"journal":{"name":"IEEE Antennas and Wireless Propagation Letters","volume":"24 9","pages":"2934-2938"},"PeriodicalIF":4.8,"publicationDate":"2025-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144998320","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Micropatterns FSS Optimization Through Hybrid EBPSO Algorithm for C-Band Shielding Applications 基于混合EBPSO算法的c波段屏蔽微图FSS优化

IF 4.8 2区计算机科学

IEEE Antennas and Wireless Propagation Letters Pub Date : 2025-06-06 DOI: 10.1109/LAWP.2025.3577244

Tanveer Ahsan;Touhidul Alam;Mohammad Tariqul Islam

引用次数: 0

Broadband Dipole Antenna Array With Multiple Self-Decoupling Nulls 具有多个自解耦零点的宽带偶极子天线阵列

IF 4.8 2区计算机科学

IEEE Antennas and Wireless Propagation Letters Pub Date : 2025-06-06 DOI: 10.1109/LAWP.2025.3577364

Zhiyuan Chen;Haohan Xu;Kun-Zhi Hu;Dajiang Li;Dong Yan

引用次数: 0

Accurate Parametric Analytic Manifold Using a Nonlinear Mutual Coupling Model 基于非线性互耦合模型的精确参数解析流形

IF 4.8 2区计算机科学

IEEE Antennas and Wireless Propagation Letters Pub Date : 2025-06-06 DOI: 10.1109/LAWP.2025.3576818

Shuoshuo Song;Xiaofeng Ma;Binyun Yan;Ting Shu

{"title":"Accurate Parametric Analytic Manifold Using a Nonlinear Mutual Coupling Model","authors":"Shuoshuo Song;Xiaofeng Ma;Binyun Yan;Ting Shu","doi":"10.1109/LAWP.2025.3576818","DOIUrl":"https://doi.org/10.1109/LAWP.2025.3576818","url":null,"abstract":"The precise mutual coupling model is the key to obtain an accurate parametric analytic manifold, which is the prerequisite to achieve superresolution direction of arrival estimation and high-precision beamforming. The widely used mutual coupling model is linear and cannot describe the direction-dependent characteristics of mutual coupling, which leads to serious performance deterioration of array signal processing algorithms. In this letter, a new nonlinear mutual coupling model named high-order broad mutual coupling matrix (MCM) is established based on the Taylor expansion to describe the directional-dependent coupling relationship between two adjacent antenna elements. Then, an accurate parametric analytic manifold using a finite-order approximation of the high-order broad MCM is yielded by the antenna pattern reconstruction method. Numerical examples verify that the array manifold reconstruction errors can be reduced exponentially by the proposed parametric analytic manifold. Especially when the piecewise fitting strategy is adopted, the reconstruction errors of the fourth-order approximated analytic manifold can be reduced to less than 1% of those of the conventional array manifold.","PeriodicalId":51059,"journal":{"name":"IEEE Antennas and Wireless Propagation Letters","volume":"24 9","pages":"2904-2908"},"PeriodicalIF":4.8,"publicationDate":"2025-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144998129","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Accelerating GPU-Based Parallel FDTD With Advanced Operator Fusion 利用先进算子融合加速基于gpu的并行FDTD

IF 4.8 2区计算机科学

IEEE Antennas and Wireless Propagation Letters Pub Date : 2025-06-05 DOI: 10.1109/LAWP.2025.3577055

Siyi Huang;Yu Cheng;Raj Mittra;Xinyue Zhang;Xingqi Zhang

{"title":"Accelerating GPU-Based Parallel FDTD With Advanced Operator Fusion","authors":"Siyi Huang;Yu Cheng;Raj Mittra;Xinyue Zhang;Xingqi Zhang","doi":"10.1109/LAWP.2025.3577055","DOIUrl":"https://doi.org/10.1109/LAWP.2025.3577055","url":null,"abstract":"The finite-difference time-domain (FDTD) method is one of the most widely used methods for solving Maxwell’s equations, but its efficiency is limited by the Courant–Friedrichs–Lewy stability condition. Recent research has extensively explored graphics processing unit (GPU)-based parallel implementations of the FDTD method to enhance computational performance. However, the inherent time-stepping and time-marching nature of the FDTD algorithm leads to frequent kernel launches and low memory efficiency on GPUs, still significantly impacting execution efficiency. This letter proposes a GPU-based FDTD framework enhanced with operator fusion to address this challenge. Within this framework, the FDTD algorithm is represented as a computation graph composed of operators. We classify these operators into different types based on their input and output relationships. Using this type of information, a rule-based strategy is developed to merge the operators into larger computational kernels, effectively enhancing GPU execution efficiency. Simulation results demonstrate that the proposed operator fusion framework does not introduce additional errors while achieving a 4× speedup compared to conventional GPU-based implementations.","PeriodicalId":51059,"journal":{"name":"IEEE Antennas and Wireless Propagation Letters","volume":"24 9","pages":"2914-2918"},"PeriodicalIF":4.8,"publicationDate":"2025-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144998221","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A Compact D-Band Multilayer Horn Antenna With Thin 3-D-Printed Lens for Subterahertz Applications 用于亚太赫兹应用的紧凑d波段多层喇叭天线与薄3d打印透镜

IF 4.8 2区计算机科学

IEEE Antennas and Wireless Propagation Letters Pub Date : 2025-06-05 DOI: 10.1109/LAWP.2025.3577079

Bowu Wang;Ziqiao Zhou;Changjiang Deng;Weihua Yu

引用次数: 0

Rapid Response Design for Extremely Low-Frequency Magnetoelectric Antennas Based on Out-of-Band Attenuation 基于带外衰减的极低频磁电天线快速响应设计

IF 4.8 2区计算机科学

IEEE Antennas and Wireless Propagation Letters Pub Date : 2025-06-05 DOI: 10.1109/LAWP.2025.3576985

Shi-Yu Wang;Ming-Yue Yang;Gao-Qi Dou;Wei Zhou;Da Yi;Ming-Chun Tang;Shi-Min Feng;Tian-Hui Fu;Chen-Peng Dai

引用次数: 0

A Simple Compact Cross-Band Reconfigurable Microstrip Patch Antenna Array 一种简单紧凑的跨带可重构微带贴片天线阵列

IF 4.8 2区计算机科学

IEEE Antennas and Wireless Propagation Letters Pub Date : 2025-06-04 DOI: 10.1109/LAWP.2025.3576606

Xiang-Yu Jin;Yong-Gang Zhou;Jian Lou;Huan Liu;Si-Yuan Liu;Shao-Bin Liu

引用次数: 0